Re: How is apache setup for multiple domains?
You can do this without IP aliasing, but it's ugly. You lose the
advantages of seperate roots, and when the client does a reverse lookup
it'll get the hostname corresponding to the IP (you can only bind one
canonical name to an IP via PTR records). This is the advantage to
using multiple IPs ... the "machines" appear to be seperate entities.
I'm sure you can think of a scenario where this is a good idea.
IP aliasing is relatively easy to do, as John points out. I had no idea
how to do it and had a fully functional system within an hour after
reading some documentation. Of course we run our own name servers so
that's not an issue for us - if you don't provide your own name service
you (of course) have to rely on someone else to do it for you - a
practice which drives me crazy.
Nathan
As far as mail goes, just add the hostname to the sendmail.cw file, or
the Cw line in sendmail.cf. I have no idea how to do it with smail :/
On Sat, 3 May 1997, Rick Jones wrote:
:
:I only breezed over this and haven't used it but if I remember correctly
:there's no need for IP aliasing to do this. You only need to add named
:entries for each virtual domain pointing to the same machine/IP.
:
:Maybe this was a missinterpretation on my part but I believe using
:multiple IP's was an optional means of configuration to use if you have a
:computer downstream from the apache machine, serving as gateway for the
:subnet, to intercept calls on port 80 (or whatever port www is on for that
:IP). http://www.apache.org/docs/host.html
:
:If I'm mistaken please let me know.
:
:On Sat, 3 May 1997, John Foster wrote:
:
:>
:> You need to use the IP Aliasing option in the kernel. The Howto is
:> /usr/doc/HOWTO/mini/IP-Alias.gz.
:>
:> This what I did:
:>
:> 1) rebuild the kernel. This is inthe Howto.
:>
:> 2) add the other interfaces with ifconfig.
:> 3) add routes to them.
:>
:> What isn't in the Howto is be sure to specify the dev option
:> on each route or else you'll find your box telling others that
:> it's a different IP to what you think it is!
:>
:> 4) Filled in the </Virtual Domain>.... entry for Apache.
:>
:> I don't know of the top of my head, but it's in one of the 3
:> config files.
:>
:> 5) Add a primary line for the new domain to /var/named/named.boot
:> 6) Adding the IP of the new domain to the reverse lookup file.
:> 7) Writing the root file for the new domain.
:>
:> The root file for the new domain just needs the SOA and the
:> address of www.domin.com for apache.
:>
:> 8) Restart the name server and reload apache.
:>
:> I not managed to get the mail to work as a multihomed server to deal
:> with the virtual domains. I've read the file on Multihomed servers in
:> /usr/doc/smail but I'm none the wiser.
:>
:> John Foster.
:>
:> On 2 May 1997, Chris Brown wrote:
:>
:> >
:> > I have been looking at using apache as our web server and it
:> > will be necessary to set up the server to appear as 3 different
:> > domains. After looking at some of the documentation it appears that
:> > a machine could be set up so that the server machine will respond
:> > to 3 different IP addresses each for a different domains then have
:> > apache determine which domain it should appear to be.
:> >
:> > It would be great if there were some sort of HOWTO type of
:> > document or some example configuration files for this but I haven't
:> > seen them. Can someone point me at something like this? One of the
:> > things that I'm not sure of is how to have different document roots
:> > for each domain and weather there is one or more than one httpd.conf.
:> > It looks like multiple VirtualHost entries are made in the same
:> > http.conf but how do the VirtualHosts get refered back to the IP
:> > address? Is it via reverse DNS? I have heard that reverse DNS
:> > lookups are extremely important on apache.
:> >
:> >
:> > --
:> > TO UNSUBSCRIBE FROM THIS MAILING LIST: e-mail the word "unsubscribe" to
:> > debian-user-request@lists.debian.org .
:> > Trouble? e-mail to templin@bucknell.edu .
:> >
:> >
:>
:>
:> --
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:> debian-user-request@lists.debian.org .
:> Trouble? e-mail to templin@bucknell.edu .
:>
:
:--Rick
:
:rickya@siservices.net
:
:
:--
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:
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